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Batteries for Flashlights and Headlamps
Fenix 21700 is a rechargeable battery with a capacity of 5000 mAh. However,
you do not need a charger to charge it. All you need is a standard USB-C cable.
Long-term Unavailable
€ 28.8
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New videos and reviews every day 6000+ reviews from our customers Fenix 21700 is a rechargeable battery with a capacity of 5000 mAh. For comparison, this is 50% more capacity than a typical smartphone battery. However, you do not need a charger to recharge it. A standard USB-C cable is sufficient. You can charge the battery either from the mains or from a computer. Fenix 21700 boasts overheating protection and a special anti-explosion valve. In addition, it is equipped with overcharge, deep-discharge and short-circuit protection, and a protection circuit on the positive pole. It is therefore one of the safest Li-ion batteries on the market. Moreover, it does not suffer from memory effect or self-discharge.
Unfortunately, it is not compatible with extended 18650 batteries, but it still has a wide range of uses. You can use it for example in flashlights Fenix HT18, Fenix PD36R, Fenix TK22 V2.0 or Fenix TK22 UE.
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5 minutes Video Buyer's Guide
Handy helpers for work activities, outdoor adventures, sports or evening fishing. Today's headlamps and flashlights are very portable and the higher quality ones last a long time. Find out how to make the right choice.
